|
1 /* |
|
2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Contains a common code for all dedicated dm host servers. |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 // ------------------------------------------------------------------------------------------------ |
|
20 // Includes |
|
21 // ------------------------------------------------------------------------------------------------ |
|
22 |
|
23 #include <s32mem.h> |
|
24 #include <data_caging_path_literals.hrh> |
|
25 #include <f32file.h> |
|
26 #include <e32math.h> |
|
27 #include <nsmlconstants.h> |
|
28 #include <nsmldebug.h> |
|
29 #include "nsmldmclientandserver.h" |
|
30 #include "nsmldmhostserver.h" |
|
31 #include "nsmldmhostsession.h" |
|
32 |
|
33 |
|
34 // ------------------------------------------------------------------------------------------------ |
|
35 // Constants |
|
36 // ------------------------------------------------------------------------------------------------ |
|
37 // |
|
38 const TInt KNSmlMaxSessionCount = 2; // Allowed clients: Treemodule and another dm host server |
|
39 _LIT ( KNSmlDmThreadAux, "_thread" ); |
|
40 _LIT ( KTxtDmHostServerBase,"NSmlDmHostServerBase"); |
|
41 const TUint32 KNSmlDMHostServer1ID = 270506498; // 0x101F9A02 |
|
42 const TUint32 KNSmlDMHostServer2ID = 270506499; // 0x101F9A03 |
|
43 const TUint32 KNSmlDMHostServer3ID = 270506500; // 0x101F9A04 |
|
44 const TUint32 KNSmlDMHostServer4ID = 270506501; // 0x101F9A05 |
|
45 |
|
46 |
|
47 // ------------------------------------------------------------------------------------------------ |
|
48 // CNSmlDMHostServer::~CNSmlDMHostServer |
|
49 // Destructor. |
|
50 // ------------------------------------------------------------------------------------------------ |
|
51 // |
|
52 EXPORT_C CNSmlDMHostServer::~CNSmlDMHostServer() |
|
53 { |
|
54 _DBG_FILE("CNSmlDMHostServer::~CNSmlDMHostServer(): begin"); |
|
55 _DBG_FILE("CNSmlDMHostServer::~CNSmlDMHostServer(): end"); |
|
56 } |
|
57 // ------------------------------------------------------------------------------------------------ |
|
58 // CNSmlDMHostServer::InitHostServer |
|
59 // Initializes the server, calls aFunction. |
|
60 // ------------------------------------------------------------------------------------------------ |
|
61 // |
|
62 EXPORT_C TInt CNSmlDMHostServer::InitHostServer ( const TDesC& aServerName, TThreadFunction aFunction ) |
|
63 { |
|
64 // check server not already started |
|
65 TFindServer findHostServer ( aServerName ); |
|
66 TFullName name; |
|
67 if ( findHostServer.Next ( name ) == KErrNone ) |
|
68 { |
|
69 return KErrAlreadyExists; |
|
70 } |
|
71 TInt error( KErrNone ); |
|
72 error = ThreadFunction( (TAny*)aFunction ); |
|
73 // _DBG_FILE("CNSmlDMHostServer::InitHostServer(): end"); |
|
74 return error; |
|
75 } |
|
76 |
|
77 // ------------------------------------------------------------------------------------------------ |
|
78 // CNSmlDMHostServer::ThreadFunction |
|
79 // Starting point of a server thread. |
|
80 // ------------------------------------------------------------------------------------------------ |
|
81 // |
|
82 TInt CNSmlDMHostServer::ThreadFunction ( TAny* aStarted ) |
|
83 { |
|
84 __UHEAP_MARK; |
|
85 CTrapCleanup* cleanup = CTrapCleanup::New(); |
|
86 __ASSERT_ALWAYS ( cleanup, PanicServer ( EMainSchedulerError ) ); |
|
87 CActiveScheduler* scheduler = new CActiveScheduler(); |
|
88 __ASSERT_ALWAYS ( scheduler, PanicServer ( EMainSchedulerError ) ); |
|
89 CActiveScheduler::Install ( scheduler ); |
|
90 TThreadFunction function = reinterpret_cast<TThreadFunction>( aStarted ); |
|
91 |
|
92 __UHEAP_MARK; |
|
93 TInt ret( function( NULL ) ); |
|
94 __UHEAP_MARKEND; |
|
95 |
|
96 CActiveScheduler::Install ( NULL ); |
|
97 delete scheduler; |
|
98 delete cleanup; |
|
99 __UHEAP_MARKEND; |
|
100 |
|
101 return ret; |
|
102 } |
|
103 |
|
104 // ------------------------------------------------------------------------------------------------ |
|
105 // CNSmlDMHostServer::ServerName |
|
106 // Server exe name is concluded from the current thread name. |
|
107 // ------------------------------------------------------------------------------------------------ |
|
108 // |
|
109 TPtrC CNSmlDMHostServer::ServerName() |
|
110 { |
|
111 RThread th; |
|
112 TName thname = th.Name(); |
|
113 TInt offset = thname.Find ( KNSmlDmThreadAux ); |
|
114 TPtrC serverExeName; |
|
115 serverExeName.Set ( KNullDesC ); |
|
116 if ( offset != KErrNotFound ) |
|
117 { |
|
118 TPtrC serverName = thname.Left ( offset ); |
|
119 if ( !serverName.Compare ( KNSmlDmHostServer1Name ) ) |
|
120 { |
|
121 serverExeName.Set ( KNSmlDmHostServer1Exe ); |
|
122 } |
|
123 else if ( !serverName.Compare ( KNSmlDmHostServer2Name ) ) |
|
124 { |
|
125 serverExeName.Set ( KNSmlDmHostServer2Exe ); |
|
126 } |
|
127 else if ( !serverName.Compare ( KNSmlDmHostServer3Name ) ) |
|
128 { |
|
129 serverExeName.Set ( KNSmlDmHostServer3Exe ); |
|
130 } |
|
131 else if ( !serverName.Compare ( KNSmlDmHostServer4Name ) ) |
|
132 { |
|
133 serverExeName.Set ( KNSmlDmHostServer4Exe ); |
|
134 } |
|
135 } |
|
136 return serverExeName; |
|
137 } |
|
138 // ------------------------------------------------------------------------------------------------ |
|
139 // CNSmlDMHostServer::NewSessionL |
|
140 // Returns a new session object, when security and version checkings are successfully passed. |
|
141 // ------------------------------------------------------------------------------------------------ |
|
142 // |
|
143 CSession2* CNSmlDMHostServer::NewSessionL( const TVersion& aVersion, const RMessage2& aMessage ) const |
|
144 { |
|
145 _DBG_FILE("CNSmlDMHostServer::NewSessionL(): begin"); |
|
146 if( iSessionCount >= KNSmlMaxSessionCount ) |
|
147 { |
|
148 User::Leave(KErrCouldNotConnect); |
|
149 } |
|
150 |
|
151 // check we're the right version |
|
152 TVersion ver ( KNSmlDmHostServerVerMajor, KNSmlDmHostServerVerMinor, KNSmlDmHostServerVerBuild ); |
|
153 if( !User::QueryVersionSupported ( ver, aVersion) ) |
|
154 { |
|
155 _DBG_FILE("CNSmlDMHostServer::NewSessionL(): wrong version offered -> BAIL OUT!"); |
|
156 User::Leave ( KErrNotSupported ); |
|
157 } |
|
158 |
|
159 TUint32 idOfCaller = aMessage.SecureId().iId; |
|
160 if ( idOfCaller != KNSmlDMHostServer1ID && idOfCaller != KNSmlDMHostServer2ID |
|
161 && idOfCaller != KNSmlDMHostServer3ID && idOfCaller != KNSmlDMHostServer4ID ) |
|
162 { |
|
163 _LIT_SECURITY_POLICY_S0 ( mySidPolicy, KNSmlSOSServerSecureID ); |
|
164 TBool status = mySidPolicy().CheckPolicy ( aMessage ); |
|
165 } |
|
166 |
|
167 _DBG_FILE("CNSmlDMHostServer::NewSessionL(): end"); |
|
168 return CNSmlDMHostSession::NewL ( *CONST_CAST ( CNSmlDMHostServer*, this ) ); |
|
169 } |
|
170 |
|
171 // ------------------------------------------------------------------------------------------------ |
|
172 // CNSmlDMHostServer::CNSmlDMHostServer() |
|
173 // Constructor. Protected to prevent direct instantiation. |
|
174 // ------------------------------------------------------------------------------------------------ |
|
175 // |
|
176 EXPORT_C CNSmlDMHostServer::CNSmlDMHostServer() : CServer2 ( EPriorityStandard ) |
|
177 { |
|
178 _DBG_FILE("CNSmlDMHostServer::CNSmlDMHostServer(): begin"); |
|
179 _DBG_FILE("CNSmlDMHostServer::CNSmlDMHostServer(): end"); |
|
180 } |
|
181 |
|
182 // ------------------------------------------------------------------------------------------------ |
|
183 // CNSmlDMHostServer::IncSessionCount |
|
184 // Increments session count. |
|
185 // ------------------------------------------------------------------------------------------------ |
|
186 // |
|
187 void CNSmlDMHostServer::IncSessionCount() |
|
188 { |
|
189 _DBG_FILE("CNSmlDMHostServer::IncSessionCount(): begin"); |
|
190 iSessionCount++; |
|
191 _DBG_FILE("CNSmlDMHostServer::IncSessionCount(): end"); |
|
192 } |
|
193 |
|
194 // ------------------------------------------------------------------------------------------------ |
|
195 // CNSmlDMHostServer::DecSessionCount |
|
196 // Decrements session count. When count reaches zero, stops active scheduler. |
|
197 // ------------------------------------------------------------------------------------------------ |
|
198 // |
|
199 void CNSmlDMHostServer::DecSessionCount() |
|
200 { |
|
201 _DBG_FILE("CNSmlDMHostServer::DecSessionCount(): begin"); |
|
202 iSessionCount--; |
|
203 if ( iSessionCount < 1 ) |
|
204 { |
|
205 Cancel(); |
|
206 CActiveScheduler::Stop(); |
|
207 } |
|
208 _DBG_FILE("CNSmlDMHostServer::DecSessionCount(): end"); |
|
209 } |
|
210 |
|
211 // ------------------------------------------------------------------------------------------------ |
|
212 // CNSmlDMHostServer::CallNewSessionL |
|
213 // Calls NewSessionL. |
|
214 // ------------------------------------------------------------------------------------------------ |
|
215 // |
|
216 EXPORT_C CSession2* CNSmlDMHostServer::CallNewSessionL ( const TVersion& aVersion, const RMessage2& aMessage ) const |
|
217 { |
|
218 _DBG_FILE("CNSmlDMHostServer::CallNewSessionL()"); |
|
219 return CNSmlDMHostServer::NewSessionL( aVersion, aMessage ); |
|
220 } |
|
221 |
|
222 // ------------------------------------------------------------------------------------------------ |
|
223 // CNSmlDMHostServer::PanicServer() |
|
224 // Panics the server. Signals the semaphore in order to prevent dm client halting. |
|
225 // ------------------------------------------------------------------------------------------------ |
|
226 // |
|
227 void CNSmlDMHostServer::PanicServer ( TNSmlDmHostServerPanic aPanic ) |
|
228 { |
|
229 _DBG_FILE("CNSmlDMHostServer::PanicServer()"); |
|
230 RSemaphore s; |
|
231 TBuf<64> semaphoreName ( ServerName() ); |
|
232 if( s.OpenGlobal ( semaphoreName ) == KErrNone ) |
|
233 { |
|
234 s.Signal(); |
|
235 s.Close(); |
|
236 } |
|
237 |
|
238 User::Panic ( KTxtDmHostServerBase, aPanic ); |
|
239 } |
|
240 |
|
241 // End of file |